Energy Source Fact Files!

To help you get thinking about energy, we've got some great pages all about it!

Natural Gas: Energy Source Fact File!

What is natural gas? Where is it found? And how do they turn gas into electricity?

Here’s the need-to-know stuff about the energy source, natural gas!

Description

Natural gas is colourless and lighter than air. It’s mainly made up of molecules of methane and is found in reservoirs deep under the ground, often alongside oil or coal.

How it was formed

Millions of years ago the world’s oceans were filled with plants and plankton. When these died they fell to the bottom of the seas. Over millions of years, these remains were buried under layers of sand and mud. Heat and pressure turned the remains into oil and natural gas.

Where do you find natural gas?

Natural gas was first found in Iran. Today it is extracted in Russia, Eastern Europe and Africa as well as the North Sea and the Irish Sea, the Caribbean, and North and South America.

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How is it made into electricity?

Natural gas can be burned in a turbine that turns a generator to create electricity. The waste heat from this can be used to heat water to produce steam. This steam is used to create more electricity by turning another turbine and generator.

Some natural gas power stations can turn the waste heat into more energy! It uses the heat to boil water and produce steam, creating even more electricity by turning another turbine and generator.

What are the advantages of using natural gas?

Gas-fired power stations can be more efficient and produce more electricity per tonne of carbon dioxide than other fossil fuel power plants.

Gas can be piped into and around the country.

Gas-fired power stations can, in theory, be built anywhere.

What are the disadvantages of using natural gas?

Natural gas is a non-renewable source of energy. This means that one day we will run out of natural gas.

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